A passive UHF RFID meandered tag antenna with tuning stubs

Author

Wu, Sung-Jung ; Ma, Tzyh-Ghuang

Author_Institution

Nat. Taiwan Univ. of Sci. & Technol., Taipei

fYear

2006

fDate

12-15 Dec. 2006

Firstpage

1486

Lastpage

1492

Abstract

In this paper, we present a new design of passive UHF radio frequency identification (RFID) tag, which demonstrates a read range of 4.6 - 5.2 m at 915 MHz. The Kurokawa´s method and Friis free-space formula are adapted to calculate the theoretical power reflection coefficient and maximum read range, respectively. By means of simple tuning techniques, the proposed antenna demonstrates a bandwidth of 35 MHz with a compact size of 25 mm by 79 mm. This design is also found to be insensitive to dielectric loading. The performance analysis is presented along with the experimental data, which is in close agreement with the theoretical values.

Keywords

UHF antennas; radiofrequency identification; Friis free-space formula; Kurokawa method; bandwidth 35 MHz; dielectric loading; distance 4.6 m to 5.2 m; frequency 915 MHz; passive UHF RFID meandered tag antenna; radio frequency identification tag; size 25 mm; size 79 mm; tuning techniques; Application specific integrated circuits; Costs; Impedance; Passive RFID tags; RFID tags; Radiofrequency identification; Reflection; Reflector antennas; Tuning; UHF antennas; RFID UHF band;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2006. APMC 2006. Asia-Pacific

Conference_Location

Yokohama

Print_ISBN

978-4-902339-08-6

Electronic_ISBN

978-4-902339-11-6

Type

conf

DOI

10.1109/APMC.2006.4429688

Filename

4429688